Spring-mattress fabric.



O. L. PLUNKETT.

SPRING MATTRESS FABRIC.

APPLICATION FILED APR. 1, 1911.

Patented May 13, 1913.

' INVENTOR ChaaLPlwzketz WITNESSES ATTORNEY one of which only is-shown. T e horizontal UNITED STATES PATENT carton- CHARLES I. PLUNKZETT, O1? BROOKLYN, NEW YORK, ASSIGNOB. '10 AMERICAN COUCH COMPANY, 01' BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

si'mne-m'r'rnnss FABRIC.

' Specification 0! Letters Patent.

. Application filed April-1, 1911. Serial no. mass.

To all whom it may concern:

Be it known that I CHARLES L. PLUNKETr, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Spring-Mattress Fabrics, of which the following is a specification.

This invention relates to spring mattresses, the object of the invention being to provide an improved spring mattress fabric simple in its construction, durable in use and com aratively ine ensive to manufacture, an made up of inks each of which comprises a pair of members extending substantially at right angles to each other or at least 90 degrees apart and integrally connected by a plurality of coils, by reason of which construction the wires forming the link will pull ina straight line in two directions, while each such link is itself. rovided with a spring insconsequenoe of w ich considerable resiliency is obtained in different directions and especially len thwise of the fabric, while the ossibilit o the breakage,of the links is e iminateti by reason of the fact that the-coils connecting the links members will yield before such members will break.

In the drawings accompanying and forming part of this specification, Figure 1 is a plan view of a ortion of this improved spring mattress; ig. 2 is a side view thereof partly broken away; Fig. 3 is a detail view of one of the fabric links; and Fig. 4 is a detail view of one of the edge or side links of the fabric.

Similar characters of reference indicate corresponding parts throughout the drawl he mattress will usually comprise some suitable frame work, shown herein as consisting of a pair of cross or transversely extending end angle bars 2 and 3 sup orted by suitable brackets 4: connected b si e bars 5,

members 6 of the cross {angle bars are provided with openings 7 for the reception of the ends of the helical sprin 8 by means of which the fabric is stretch The fabric inthe present instance is made up .ofa series of angularlyformed links 10,

under tension.

each comprising a relatively long member 11 and a relatively short transverse member" 12, each having a hook or loop v13 at its end, these members being integrally, connected by a coiled sprlng 14 at their point of juncture. In other words, each link is of an integral construction, the straight portions thereof terminatingjn a coiled spring comprising a plurality of coils, thus forming a double coi which coils are shown as horizontally located. By this construction the necessity of overlapping or crossin the straight members of the link in or er to connect-the members by a bent portion is avoided, while at the same time consider able resiliency lengthwise of the link is obtained, which is impossible when-the members or arms of the link cross each' other. Furthermore, by joining the link members or, arms by means of a plurality ofcoils, or a double coil, it will be immediately ap arent that anyabnornial tension on the ink members Wlll not break the same as would be the case where such link members cross each other, for the reason that the coils will yield withouttightly closing the loops thereofand thus prevent any breakage of the Patented May 13, 1913.

which is a material advantage in structures of this kind, and that the coils form the spring for the link without depending. u on the form of the straight members thereol to give such spring action, so that the helical sprin 8 at the ends of the'fabric may be of lig ter and therefore less expensive construction. The links are assembled by hooking the arms of each link into coils of companion links, whereby when assembled the Ian arms or members of each link will pre erably extend longitudinally of the fabric, while the short arms Wlll extend transversely thereof. One outer or side edge of the fabric is made u of lengthwise extending links 20, in WlllCl'l the short arms are dispensed with, so that this edge of the fabric comprises a lengthwise extending member having a hook or loop at one end and a plurality of coils at its op osite end,

neat finish to the structure. ehelicalsprings 8 for im arting tension to thefabric are each hooked into a coil of a link.

be readily taken up by the double coils and-- thus prevent the breakage of the link, which would often result where the members of the links are connected by a simple bend or by the links crossing each other.

By reason of the present improvement 1t will be observed that the pull on each member ofthe link is in a substantially straight direction such pull on either of such members tendin to open or spread one of such coils. In o aer words, applicant provides a fabric in which there is retained the straight pull onthe links in transverse directions, and by forming the corners of the links'in the'manner shown great resiliency is given thereto, and this is equally exerte 1n e1ther direction. The advantage of havm .a

straight pull is that it prevents the fa ric' from drawing in at the side edges. In this improved construction the double coil terminating in the straight portions not only permits a straight pull in transverse directions, and especially lengthwise of the fabric re venting the pulling of the edge of the a ric toward the center, but in actlon the pull on the longer strai ht portion of the link tends to pull one coil aterally over or away from its companion coil, thereby materially increasing the resiliency of the link, and of course the whole fabric. The fabric is so resilient by this construction that it can be practically made without coil springs at the ends if this is desired.

I claim as my invention:

1. A spring mattress fabric made up of links,- each comprising an eye or loop formed by a plurality of coils, a pair of coils terminatin in relatively straight portions, which straig t portions are at least 90 degrees apart without one crossing the other and have hook or 100 terminals, said terminals engaging the ad acent links in both longitudinal and transverse straight line series, said plurality of coils giving resiliency equally to such straight portions, and the pull on each of said straight portions being.

in substantially a straight direction.

2. A spring mattress fabric made up of' links, eac comprising an eye or loop formed by a plurality of coils, a air of co s terminatin relatively stralght portions, one exten g substantially at right angles to the other without one crossing the other, and

actress having hooker loop terminals, said terminals engaging the adjacent links in both longitudinal and transverse straight line sories,-said plurality of coils giving resiliency equally to such straight portions, and the pull on each of said straight portions being in substantially a straight direction.

' 3. Aspring mattress fabric made up of links, each comprising an eye or loop formed by a plurality of coils, a pair of coils terminatin in relatively straight portions, one exten ing substantially at right angles to the other without one crossing the other, and having hook or loop terminals, said. terminals engaging the adjacent links in both -'longitudinal and transverse straight line series, one straight portion of each link being shorter than its companion straight porequally to such straight portions, and the ull on each of said straight portions being 1n substantially a straight direction.

4. A spring mattress fabric made up of links, eac comprising an eye or loop formed by a plurality of coils, a pair of coils terminating in relatively stralght portions, one extending substantially at right angles to the other without one crossing the other, and

'tion, said plurality of coils giving resiliency having hook or loop terminals, said terminals engaging the adjacent links in both longitudinal and transverse strai ht line series,

that straight portion of eac link extend ing crosswise of the fabric being shorter than its companion straight portion, said plurality of coils giving resiliency equally to such straight portions, and the pull on each of said straight portions being in substantially a straight direction.

5. A spring mattress fabric made up of links, each comprising an eye or formed by a plurality of coils, a pair of 001 s terminating in re atively straight plortions, one extending substantially at rig t angles to the other without one crossingthe other, and having hook or 100 terminals, said terminals engaging the a jacent links in both longitudinal and transverse straight line series, said plurality of coils giving resiliency equally to such straight ortions, and the pull on each of said strai ht ortions being in substantially a straig t direction,

the outer edge of the fabric comprising indelocated coils, each terminating in a relatively eye or loop formed by a pairof horizontally straight portion extending substantially at right angles one to the other without one crossing the other, and having a hook or loop "terminal, said terminals engaging the adjacent links in both longitudinal and transverse straight line series, so that the pull on the links will be in straight lines end a pair of horizontally located coils and 10 lengthwise and crosswise of the fabric, said at its other end a hook or loop.

coils giving resiliency equally to such Signed at 1821 Park Row Building, New strailighit plprtlionls, that fitralghti portion of York, N. Y., this 29th day of March, 1911. eac o t e in s w ic exten s crosswise of the fabric being shorter than its com- CHARLES PLUNKEIT' panion straight portion, and an outer edge Witnesses:

of the fabric comprising lengthwise extend- F. E. Boron,

ing straight links, each also having at one GEORGE F. PURCELL. 

